* @author Dariusz Rumiński * * @internal */ final class Php72 { private static $hashMask; public static function utf8_encode($s) { $s .= $s; $len = \strlen($s); for ($i = $len >> 1, $j = 0; $i < $len; ++$i, ++$j) { switch (true) { case $s[$i] < "\x80": $s[$j] = $s[$i]; break; case $s[$i] < "\xC0": $s[$j] = "\xC2"; $s[++$j] = $s[$i]; break; default: $s[$j] = "\xC3"; $s[++$j] = \chr(\ord($s[$i]) - 64); break; } } return substr($s, 0, $j); } public static function utf8_decode($s) { $s = (string) $s; $len = \strlen($s); for ($i = 0, $j = 0; $i < $len; ++$i, ++$j) { switch ($s[$i] & "\xF0") { case "\xC0": case "\xD0": $c = (\ord($s[$i] & "\x1F") << 6) | \ord($s[++$i] & "\x3F"); $s[$j] = $c < 256 ? \chr($c) : '?'; break; case "\xF0": ++$i; // no break case "\xE0": $s[$j] = '?'; $i += 2; break; default: $s[$j] = $s[$i]; } } return substr($s, 0, $j); } public static function php_os_family() { if ('\\' === \DIRECTORY_SEPARATOR) { return 'Windows'; } $map = [ 'Darwin' => 'Darwin', 'DragonFly' => 'BSD', 'FreeBSD' => 'BSD', 'NetBSD' => 'BSD', 'OpenBSD' => 'BSD', 'Linux' => 'Linux', 'SunOS' => 'Solaris', ]; return isset($map[\PHP_OS]) ? $map[\PHP_OS] : 'Unknown'; } public static function spl_object_id($object) { if (null === self::$hashMask) { self::initHashMask(); } if (null === $hash = spl_object_hash($object)) { return; } // On 32-bit systems, PHP_INT_SIZE is 4, return self::$hashMask ^ hexdec(substr($hash, 16 - (\PHP_INT_SIZE * 2 - 1), (\PHP_INT_SIZE * 2 - 1))); } public static function sapi_windows_vt100_support($stream, $enable = null) { if (!\is_resource($stream)) { trigger_error('sapi_windows_vt100_support() expects parameter 1 to be resource, '.\gettype($stream).' given', \E_USER_WARNING); return false; } $meta = stream_get_meta_data($stream); if ('STDIO' !== $meta['stream_type']) { trigger_error('sapi_windows_vt100_support() was not able to analyze the specified stream', \E_USER_WARNING); return false; } // We cannot actually disable vt100 support if it is set if (false === $enable || !self::stream_isatty($stream)) { return false; } // The native function does not apply to stdin $meta = array_map('strtolower', $meta); $stdin = 'php://stdin' === $meta['uri'] || 'php://fd/0' === $meta['uri']; return !$stdin && (false !== getenv('ANSICON') || 'ON' === getenv('ConEmuANSI') || 'xterm' === getenv('TERM') || 'Hyper' === getenv('TERM_PROGRAM')); } public static function stream_isatty($stream) { if (!\is_resource($stream)) { trigger_error('stream_isatty() expects parameter 1 to be resource, '.\gettype($stream).' given', \E_USER_WARNING); return false; } if ('\\' === \DIRECTORY_SEPARATOR) { $stat = @fstat($stream); // Check if formatted mode is S_IFCHR return $stat ? 0020000 === ($stat['mode'] & 0170000) : false; } return \function_exists('posix_isatty') && @posix_isatty($stream); } private static function initHashMask() { $obj = (object) []; self::$hashMask = -1; // check if we are nested in an output buffering handler to prevent a fatal error with ob_start() below $obFuncs = ['ob_clean', 'ob_end_clean', 'ob_flush', 'ob_end_flush', 'ob_get_contents', 'ob_get_flush']; foreach (debug_backtrace(\PHP_VERSION_ID >= 50400 ? \DEBUG_BACKTRACE_IGNORE_ARGS : false) as $frame) { if (isset($frame['function'][0]) && !isset($frame['class']) && 'o' === $frame['function'][0] && \in_array($frame['function'], $obFuncs)) { $frame['line'] = 0; break; } } if (!empty($frame['line'])) { ob_start(); debug_zval_dump($obj); self::$hashMask = (int) substr(ob_get_clean(), 17); } self::$hashMask ^= hexdec(substr(spl_object_hash($obj), 16 - (\PHP_INT_SIZE * 2 - 1), (\PHP_INT_SIZE * 2 - 1))); } public static function mb_chr($code, $encoding = null) { if (0x80 > $code %= 0x200000) { $s = \chr($code); } elseif (0x800 > $code) { $s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F); } elseif (0x10000 > $code) { $s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F); } else { $s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F); } if ('UTF-8' !== $encoding) { $s = mb_convert_encoding($s, $encoding, 'UTF-8'); } return $s; } public static function mb_ord($s, $encoding = null) { if (null === $encoding) { $s = mb_convert_encoding($s, 'UTF-8'); } elseif ('UTF-8' !== $encoding) { $s = mb_convert_encoding($s, 'UTF-8', $encoding); } if (1 === \strlen($s)) { return \ord($s); } $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0; if (0xF0 <= $code) { return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80; } if (0xE0 <= $code) { return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80; } if (0xC0 <= $code) { return (($code - 0xC0) << 6) + $s[2] - 0x80; } return $code; } }